Iranian women in Tehran shout protests into the night in a photograph chosen by the World Press Photo organization as the top news photo of 2009. Italian photographer Pietro Masturzo had taken the picture on June 24, shortly after Iran's contested presidential elections.
"The photo shows the beginning of something, the beginning of a huge story. It adds perspectives to news. It touches you both visually and emotionally, and my heart went out to it immediately," jury chair Ayperi Karabuda Ecer said in a statement.
A team of judges, including National Geographic magazine's director of photography, David Griffin, selected winners in ten subject areas–from spot news to sports features. In each subject area, the judges awarded first, second, and third prizes for both individual photos and photo-essays. (The National Geographic Society owns National Geographic magazine and National Geographic News.)
Masturzo's winning shot was chosen from more than a hundred thousand images submitted by 5,847 photographers. The picture was also part of a photo-essay that won first place in the "People in the News" essay category.
First Prize, Spot News
Soldiers pull a woman from the scene of a suicide car bombing in Kabul, Afghanistan, in a December 15 picture by Australian photographer Adam Ferguson.
The bomb exploded near a hotel in the Wazir Akbar Khan neighborhood, which houses a number of embassies. At the time, the attack was the deadliest in the Afghan capital in six weeks, killing 8 people and wounding 40 others.
First Prize, Spot News (Series)
Two men hide behind a barrier as police fire tear gas at rioters in Antananarivo, the capital of the African island country of Madagascar. The February picture was part of a photo story by Argentine photographer Walter Astrada.
A March picture by Swedish photographer Kent Klich shows light streaming through a hole in the roof of an abandoned home hit by a tank shell in northern Gaza.
The family that once lived in the house evacuated during an Israeli attack on Gaza that began in December 2008.
First Prize, General News (Series)
A young man takes a drag from a crack pipe in Reno, the poorest neighborhood in Guinea-Bissau's capital city of Bissau. The scene is part of a winning photo story by Italian photographer Marco Vernaschi.
The tiny West African country includes several islands off its coast, yet it has no working boats in its navy. In recent years Guinea-Bissau has become a haven for South American drug traffickers smuggling cocaine into Europe.
Second Prize, People in the News
A picture by Associated Press photographer David Guttenfelder captures three U.S. soldiers responding to Taliban fire outside a bunker in the Korengal Valley of Afghanistan in May.
Specialist Zachery Boyd (left), who had been sleeping in his bunk when the attack began, rushed to support fellow platoon members, arriving in a T-shirt and pink "I Love NY" boxer shorts.
Second Prize, People in the News (Series)
British photographer Charles Ommanney snapped a picture of U.S. President Barack Obama in a seemingly quiet moment, immediately before his swearing-in ceremony in Washington, D.C., on January 20.
Ommanney told the White House Correspondents Insider, a news blog dedicated to covering the White House press corps, that this photograph "sums up everything to me" about the president.
"There were millions of people watching around the world, and there was a single figure who was very much in the moment. He wasn't freaking out; he was kind of just on an incredible ride."
Second Prize, Contemporary Issues
A dead giraffe lies in a dry riverbed in northeastern Kenya in September. Hundreds of thousands of animals–from wildlife to pastoral nomads' herds–died in 2009 during Kenya's worst drought in more than a decade.
In early March 2010 rain returned to Kenya, bringing flooding that forced 50,000 people to evacuate their homes.
First Prize, Contemporary Issues (Series)
Iraq war veteran Jose Pequeño is helped out of his hospital bed by his mother in a picture by U.S. photographer Eugene Richards. Pequeño lost 40 percent of his brain when a grenade exploded in his patrol vehicle in the Iraqi city of Ramadi.
From the start of the conflict to the end of 2009, more than 4,300 U.S. military personnel were killed and about 30,000 wounded.
Second Prize, Daily Life
A family's Sunday picnic on a beach in Mozambique, snapped by Joan Bardeletti of France, exemplifies the rise of the middle class in this southeastern African country, still one of the poorest in the world.
Mozambique has enjoyed "blistering economic growth" over the past decade, according to the World Bank. The international financial institution projects that the number of people worldwide classified as middle class in developing countries will reach one billion by 2030.
First Prize, Daily Life (Series)
Adrian, 13, has autism. He loves watching, listening to, and touching the static on television, according to Peruvian photographer Gihan Tubbeh.
Tubbeh documented Adrian's life with autism, a complex developmental disability estimated to affect 1.5 million people in the United States alone.
First Prize, Portraits
Graham has struggled with anorexia since he was 14, when he tried to lose weight to attract a girl, according to a report in the U.K.'s Guardian newspaper. By the time he was 15, Graham weighed just over 66 pounds (30 kilograms).
Captured by U.K. photographer Lisa Pritchard, Graham is now 24 and double that weight, but he still sees himself as recovering from anorexia.
Second Prize, Portrait (Series)
Boy or girl? Before puberty, some children appear androgynous.
Photographer Annie van Gemert of the Netherlands took a series of photographs aimed at challenging viewers' perceptions of gender, according to World Press Photo.
First Prize, Arts and Entertainment
Malick Sidibé of Mali shot a photograph of djembe drummers Abdoulaye Diakite (left) and Mamoutou Kone for a New York Times Magazine story about wild prints making a fashion comeback.
The djembe is a goblet-shaped wooden hand drum that originated in Africa.
First Prize, Arts and Entertainment (Series)
A person holds up a white rat in the "dirty kids" lounge at Rainbow Camp, a yearly event that celebrates inclusiveness and encourages attendees to pray for world peace.
The festival attracts hundreds of teenage runaways, including this group captured by Canadian photographer Kitra Cahana. The 2009 Rainbow Camp was held in the Santa Fe National Forest in New Mexico.